Question

what are the causes of myopia and hypermetropia ? ​

Answer 1

ANSWER:

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CAUSES OF MYOPIA:

Myopia occurs when the eyeball is too long, relative to the focusing power of the cornea and lens of the eye. This causes light rays to focus at a point in front of the retina, rather than directly on its surface.

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CAUSES OF HYPERMETROPIA:

The main cause for this Hypermetropia is the insufficiente eye lenght. A lot of people suffer from hypermetropia without even knowing it, because the eye automatically compensate this defect.

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Answer 2

Answer:

Moyopia

Is it hard to see distant objects, like highway signs, until you’re a few feet away, but easy to read a book up close? Chances are you’re myopic, also known as nearsighted. It’s a pretty common condition that your eye doctor usually can fix with eyeglasses, contacts, or eye surgery.blame. When your eyeball is too long or the cornea -- the protective outer layer of your eye -- is too curved, the light that enters your eye won’t focus correctly. Images focus in front of the retina, the light-sensitive part of your eye, instead of directly on the retina. This causes blurred vision. Doctors call this a refractive error.High myopia: It’s a more serious form of the condition, where the eyeball grows more than it is supposed to and becomes very long front to back. Besides making it hard to see things at a distance, it can also raise your chance of having other conditions like a detached retina, cataracts, and glaucoma.

Degenerative myopia: Also called pathological or malignant myopia, it is a rare type you usually inherit from your parents. Your eyeball gets longer very quickly and causes severe myopia, usually by the teenage or early adult years. This type of myopia can get worse far into adulthood. Besides making it hard to see things at a distance, you may have a higher chance of having a detached retina, abnormal blood vessel growth in the eye (choroid neovascularization), and glaucoma

Hypermetropia

Hypermetropia is a defect of vision that causes the impossibility for rays of light to be focused on the retina, but behind it. The main cause for this defect is the insufficiente eye lenght. A lot of people suffer from hypermetropia without even knowing it, because the eye automatically compensate this defect.

Hypermetropia is a defect of vision that causes the impossibility for rays of light to be focused on the retina, but behind it. The main cause for this defect is the insufficiente eye lenght.

A lot of people suffer from hypermetropia without even knowing it, because the eye automatically compensate this defect. The continous effort to try to see clean images, can cause migraines that are rarely linked to eye’s problems. Hypermetropia gets noticed only when the eye cannot compensate any longer: vision becomes definitely blurred and people finally book an appointment to be checked out.

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